Fig. 1
From: Longitudinal analysis of the patient pathways to diagnosis of psoriatic arthritis
Diagnosis codes in the 6 years prior to PsA diagnosis among patients with PsA vs controls. GERD, gastroesophageal reflux disease; mSK, musculoskeletal; NOS, not otherwise specified; PsA, psoriatic arthritis. aSkin comprises 43 codes, including dermatitis, rash, acne, and keratosis. bAxial codes include > 50 codes relating to axial disorders and syndromes and includes codes for spondylopathy, backache, and disc disorders. cArthritis codes include chronic postrheumatic arthropathy (714.4); synovitis and tenosynovitis, unspecified (727.00); synovitis and tenosynovitis in diseases classified elsewhere (727.01); and secondary multiple arthritis (M153)